[prev in list] [next in list] [prev in thread] [next in thread]
List: pykde
Subject: Re: [PyQt] SIP exception handling
From: Qin Shen <jeanshen () tippett ! com>
Date: 2010-05-20 22:49:04
Message-ID: 4BF5BC60.6060800 () tippett ! com
[Download RAW message or body]
[Attachment #2 (multipart/alternative)]
Thanks so much, Phil!
That's exactly where the problem was! All I had to do is to change:
const std::string sgRole() const;
to
const std::string sgRole() const throw(TipShotgun::Shotgun::Exception);
Thanks!!
-Jean
Phil Thompson wrote:
> On Wed, 19 May 2010 16:02:38 -0700, Qin Shen <jeanshen@tippett.com> wrote:
>
>> Hi there,
>>
>> I'm fairly new on SIP and haven't done any development on PyQt.
>> But I'm using SIP to write a python wrapper for our C++ library.
>>
>> I have tried to translate the C++ exceptions to Python exceptions.
>> So far I managed to get it to work, but I had to change the
>> auto-generated sipcode, which is not what I wanted. The following
>> is what I did, could any of you tell me what I have missed and
>> how I can avoid manually changing the generated sipcode?
>>
>>
>> (1) The .sip file
>> --------------------------------------------------
>> %Exception TipShotgun::Shotgun::Exception(SIP_Exception)
>> /PyName=ShotgunException/
>> {
>> %TypeHeaderCode
>> #include <TipShotgun/Shotgun.h>
>> %End
>> %RaiseCode
>> const char *detail = sipExceptionRef.what();
>>
>> SIP_BLOCK_THREADS
>> PyErr_SetString(sipException_TipShotgun_Shotgun_Exception,
>>
> detail);
>
>> SIP_UNBLOCK_THREADS
>> %End
>> };
>>
>>
>> (2) I run "sip" command with the "-e" flag which enables the support
>> for C++ exceptions. The auto-generated sip .cpp code looks like
>> this BEFORE I made any changes manually.
>> --------------------------------------------------
>> try
>> {
>> sipRes = new std::string(sipCpp->sgRole());
>> }
>> catch (...)
>> {
>> sipRaiseUnknownException();
>> return NULL;
>> }
>>
>>
>> (3) Here is the sip .cpp code AFTER I added the changes.
>> ---------------------------------------------------------
>> try
>> {
>> sipRes = new std::string(sipCpp->sgRole());
>> }
>> catch (TipShotgun::Shotgun::Exception &error)
>> {
>> PyErr_SetString(sipException_TipShotgun_Shotgun_Exception,
>> error.what());
>> return NULL;
>> }
>> catch (...)
>> {
>> sipRaiseUnknownException();
>> return NULL;
>> }
>>
>>
>> (4) My python test script
>> ----------------------------------------------------------
>> #!/usr/bin/env python
>>
>> from _shotgun import *
>> sg = TipShotgun.Shotgun()
>> user = sg.findUserByLogin("farny")
>> try:
>> role = user.sgRole()
>> except ShotgunException, err:
>> print err
>>
>> print
>> print "THE END OF TEST"
>>
>> -------------------------------------------------------
>> With (1), (3) & (4), everything works fine. Without the manual updates
>>
> made
>
>> to the sip .cpp code, it just won't work. Any help will be greatly
>> appreciated.
>>
>
> It looks like your .sip file that wraps the sgRole() method is missing the
> throw() part.
>
> Phil
>
[Attachment #5 (text/html)]
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Thanks so much, Phil!<br>
<br>
That's exactly where the problem was! All I had to do is to change:<br>
const std::string sgRole() const;<br>
to<br>
const std::string sgRole() const
throw(TipShotgun::Shotgun::Exception);<br>
<br>
Thanks!!<br>
<br>
-Jean<br>
<br>
<br>
Phil Thompson wrote:
<blockquote cite="mid:7002e561c4b04e9759300490b2ce28df@localhost"
type="cite">
<pre wrap="">On Wed, 19 May 2010 16:02:38 -0700, Qin Shen <a \
class="moz-txt-link-rfc2396E" \
href="mailto:jeanshen@tippett.com"><jeanshen@tippett.com></a> wrote: </pre>
<blockquote type="cite">
<pre wrap="">Hi there,
I'm fairly new on SIP and haven't done any development on PyQt.
But I'm using SIP to write a python wrapper for our C++ library.
I have tried to translate the C++ exceptions to Python exceptions.
So far I managed to get it to work, but I had to change the
auto-generated sipcode, which is not what I wanted. The following
is what I did, could any of you tell me what I have missed and
how I can avoid manually changing the generated sipcode?
(1) The .sip file
--------------------------------------------------
%Exception TipShotgun::Shotgun::Exception(SIP_Exception)
/PyName=ShotgunException/
{
%TypeHeaderCode
#include <TipShotgun/Shotgun.h>
%End
%RaiseCode
const char *detail = sipExceptionRef.what();
SIP_BLOCK_THREADS
PyErr_SetString(sipException_TipShotgun_Shotgun_Exception,
</pre>
</blockquote>
<pre wrap=""><!---->detail);
</pre>
<blockquote type="cite">
<pre wrap=""> SIP_UNBLOCK_THREADS
%End
};
(2) I run "sip" command with the "-e" flag which enables the support
for C++ exceptions. The auto-generated sip .cpp code looks like
this BEFORE I made any changes manually.
--------------------------------------------------
try
{
sipRes = new std::string(sipCpp->sgRole());
}
catch (...)
{
sipRaiseUnknownException();
return NULL;
}
(3) Here is the sip .cpp code AFTER I added the changes.
---------------------------------------------------------
try
{
sipRes = new std::string(sipCpp->sgRole());
}
catch (TipShotgun::Shotgun::Exception &error)
{
PyErr_SetString(sipException_TipShotgun_Shotgun_Exception,
error.what());
return NULL;
}
catch (...)
{
sipRaiseUnknownException();
return NULL;
}
(4) My python test script
----------------------------------------------------------
#!/usr/bin/env python
from _shotgun import *
sg = TipShotgun.Shotgun()
user = sg.findUserByLogin("farny")
try:
role = user.sgRole()
except ShotgunException, err:
print err
print
print "THE END OF TEST"
-------------------------------------------------------
With (1), (3) & (4), everything works fine. Without the manual updates
</pre>
</blockquote>
<pre wrap=""><!---->made
</pre>
<blockquote type="cite">
<pre wrap="">to the sip .cpp code, it just won't work. Any help will be greatly
appreciated.
</pre>
</blockquote>
<pre wrap=""><!---->
It looks like your .sip file that wraps the sgRole() method is missing the
throw() part.
Phil
</pre>
</blockquote>
<br>
</body>
</html>
_______________________________________________
PyQt mailing list PyQt@riverbankcomputing.com
http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic